Hay-sling lock.



No. 746,197. PATENTED DTECpS, 1903..

P. BpSTRIGKLBR.

HAY SLING LOCK. .APPLIoATloN FILED JUNE 11, 1900..

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. l nn" 1 l Tus mams PEYEns cg. vnorouma. wAsHmcTon D ings, in Whichedto be detachably engaged with the main UNITED STATES Patented December8, 1903.

PATENT OFFICE.

FRANK BOWMAN STRICKLER, OF JANESVILLE, WISCONSIN, ASSIGNOR TO THEJANESVILLE HAY TOOL COMPANY, OF JANESVILLE, WISCONSIN,

A CORPORATION OF WISCONSIN.

HAY-SUNG LOCK'.

SPECIFICATION forming part of Letters Patent N0. 746,197, dated Deembrs, 1903.

Application ined June 11,`19oo.

To a/ZZ whom it may concern: d

Beit knownthat I, FRANK BOWMAN STRICK- LER, of Janesville, in the countyof Rock and State of Wisconsin, have invented certain new and usefulImprovements in Hay-Sling Locks, of which the following is aspecification.

This invention relates to improvements in' haysling locks; and it hasamong its principal objects to provide a simple, strong, and cheapconstruction in which all of the working parts are effectively closedagainst clogging or interference by the filaments of hay or othercommodity vfor conveying which the device is used, to, so construct andarrange the parts as to secure a more direct applica' tion of pull uponthe latching-bar and to guard the operating-cord from being interferedwith by the load, to provide a construction all of the parts ofwhich canbe cheaply and conveniently cast and of such form as to require theminimum amount of finishing in order to insure accurate fittingtogether, and in general to provide an -improved device of the characterreferred to. u

To the above ends the invention consists in the matters hereinafterdescribed,and more particularly pointed out in the appended claims, andthe saine will be readily under! stood from the following description,reference being had-to the'V accompanying draw- Figure 1 is a top planview of a hay-sling lock embodying a preferred form of my invention.Fig. 2 is a side elevation of the same, parts being shown inlongitudinal section to disclose more clearly the construction of thelocking. mechanism. Fig. 3 is an ini ner end view of the latchingmember. Fig. 4 is a bottom plan view of the lock with the removablesidecasing removed.

Referring rst to Figs. 1 to 4, inclusive, wherein is shown apreferredembodiment of' the invention, lvdesignates as a whole the mainbodyorprincipal memberof the sling# lock, and 2 the latching member or partadaptbody. Said main body in the preferred embodiment shown hereinconsists of a relatively liat casting or forging suitably recessed orhollowed in one of its sides, as indicated serai No. 19,817. (No model.)

at 3, to receive a reciprocatory `locking-bar 4, the cavity Within whichthe said lockingv, bar is arranged being closed by a separate side plate5, which in the completed device is held in position by means ofsuitable rivets or securing-bolts 6 and rivet-studs 7, as best,indicated in Figs. 1 and 4.

`In the preferred embodiment now being described thelocking-bar cavity 3has abrupt end walls at each end, as indicated at 8 9,

respectively, which serve to limit the throw of the locking-bar ineither direction, the

shoulders or end walls `8 at, the forward end of the device, .or thatend toward which the vlocking-bar is projected when in locking en?gagement with the opposite member, forming stops againstwhich shoulders10 upon the said is provided with parallel longitudinally-extending arms12, projecting inwardly from the main body thereof and arranged toengage at their ends guide-,apertures 13, formed to extend rearwardlyout through the end.

wall of the cavity, lthe coiled springs being arranged to encircle saidarms and interposed between the shoulders 14, formed at the juncture ofthe arms with the body of the locking-bar, and the abutting end wallportions 9,

as h`ereinbefore described. The locking end portion or strike 15 of the'locking-bar is of reducedwidth and is arranged to extend out through aguide-passage 16, forming an extension of the main cavity..-v

`at the same, time guided to reciprocate propi erlt7 withinthe cavitythe said locking-bar The forward end ofthe device in the prey ferredconstruction shown takes the' form of ,a transversely-extendingA rabbet17, the perpendicular Wall of which is shown in the present instance asformed coincident with the end margin of the removable plate 5.

Within the extension or lip portion 18 of said rabbet at a point inlongitudinal alinement with the strike of the ylocking-bar is formedalocking-recess 19, shown in the present in- IOO stance, although notnecessarily, as exten ded entirely through the lip and of rectangularcontour and the length oli` the strike beingl such that When thelocking-bar is projected said strike will extend Within and overlie aportion of the locking-recess, as clearly indicated in Fig. 2.

Describing now the latching.P member 2, the latter is desirably ofsuitable conformation to form when engaged with the main body anextension of the latter and is provided at its meeting end with adepending suitablyshaped loop 20 of external conformation adapted to liteasily Within the locking-recess 19 of the main body and internallyconstructed to receive the strike portion of the locking-bar when thelatter 's projected. Preferably and as shown in the present instance theend margin of the latchingr member and the side margin 2l oi its loop 2Oare formed in the same plane, so that when brought into engagement withthe end of the rabbet the loop will be thereby guided to move morereadily into engagement with the locking-rt cess, and in order to stillfurther facilitate such engagement the opposite side 22 of the loop isrounded slightly, so as to enter more freely.

Each member of the sling and lock is provided with suitable meanswhereby a cable or rope may be attached, preferably and as shown in thepresent instance such means comprisingl pairs of eyes 23 2-1 at. the endof each member, through which the cable may be passed in aWell-understood manner. As a special feature of improvement, however',that portion of the end of the main body through which the eyes 23 areformed is deflected downwardly, as best indicated in Fig. 2, so that theguide-apertures l may be formed or drilled ont by means of a toolinserted from the outside without interfering with the said eye portionsof the device.

ln order to retract the locking-bar to diaengage the members, said baris provided with an eye 25, with which a suitable operating-cord may beengaged, as indicated at 26, and in order that the pull.upon thelocking-bar may be in direct longitudinal alinement with the latter,reefardless of the particular direction in which the cord is trainedfrom the sling-lock to the operator, that por- /tion of the outer end ofthe device between the apertured ears thereof is formed into aguide-groove 27, over which the cord may slide freely, the side walls ofthis guide-curve being extended up to a sufficient height to form guards2S, which effectively prevent the hay or other commodity beingtransported by the device from bearing upon the cord iu such manner asto interfere Wit-h its free operation. It is further to be noted in thissame connection that the cords or cables which are extended through theeyes 23 of the slinglock will further protect the operating-cord 26 frominterference by the load.

In order to facilitate the attachment of the operating-cord to thelocking-bar, the body of the sling-lock is provided withlinger-apertures 29, 30, extending into the Cavity thereof from theopposite sides, the lowermost aperture 30 serving also as adischarge-apertore through Which dust and iilaments ol hay or the likewhich may chalice to enter the cavity will oe discharged by thereciprocation of the locking-bar.

The operation of the device has been snifficientlyindicated inconnection with the fore- ;oing description and need not, therefore, berepeated.

I claim as my inventionl. A sling-lock comprising a main body providedat one end with a pair of securingeyes and at its opposite end with atransversely-extending rabbet, a lookingrecess formed in the lip memberof said rabbet, a Spring-pressed locking-bar mounted to recipA recatewithin said main` body and provided with a strike portion adapted to beprojected opposite said locking-reress, parallel guidearms upon saidlocking-bar, coiled springs mounted upon said arms and arranged tonormally project the lorking-bar, an eye formed in the locking-bar at apoint between said guide-arms, a guide-groove lormed in said main bodyat a point between the attaching'- eyes thereof, a separate side casino`adapted to be secured to the main body toitn'lose the lockingbar, and alatchine; member constructed at one end to fit within the rabbet ol themain member and provided with a locking-loop formed externally to fitwithin the locking-recess and internally to receive the strike of thelocking-bar, and provided at its opposite end with a pair ot'attaching-eyes, substantially as and for the purposes set forth.

2. In a sling-lock, the combination of the main bodyl provided with alocking-bar cavity 3, the locking-bar 4- monnted to reciprocate withinsaid cavity, and provided with the parallel guide-arms 12 arranged toengage `at their rear ends the guide-apertures I3. the

coiled springs ll mounted upon said truidearms and arranged to normallyproject the locking-bar, theoperating-cord eye 25 formed in thelocking-bar, the wird-guide 27 a rrangred in alinement with the path ofreciproeation o the locking-kmr, the separate side casinar 5 secured tothe main body to inclose and confine the locking-bar, thetransversely-extendinfrr rabbet. formed at the end of the main body, thelocking-recess formed therein, the latching,l member 2 provided with thelocking-loop 2O adapted to engage said lockingrecess, and theattaching-eyes 23, 24, at the respective ends` ot' the sling-lock,substantially as described.

FRANK BO\VMAN STRICKLER.

\Vitnesses:

ALBERT H. GRAVES, L. F. MCCREA.

